Mixing cuvette and timing turntable for providing reaction mixtu

Details Mixing cuvette and timing turntable for providing reaction mixtu Mixing cuvette and timing turntable for providing reaction mixtu

1975-01-22

1976-04-20

Serwin, R. E.

Chemistry: physical processes

Physical processes

Crystallization

23253R, G01N 114, G01N 118

Patent

active

039516083

ABSTRACT:
A turntable is supported upon a support base and is urged rotationally through step increments at a constant stepped rate. The step rotation is accomplished by an air actuated ratchet mechanism. Peripheral depressions are provided for accepting a plurality of cuvettes for holding samples and reagents spaced apart within the cuvettes. A depending member on the cuvette is configured for contact by an air actuated extension arm for rocking the cuvette in its peripheral position on the turntable for mixing the sample and reagent. The extension arm is adjustable rotationally to contact the depending member on a cuvette at a predetermined rotational mix position on the turntable. A rotational reference position for the turntable is defined on the support. A predetermined time is thereby selected for reaction between the sample and the reagent dependent upon the selection of the mix position and the constant stepped rate of turn imparted to the turntable. In this fashion a mixed reactant solution is presented at the reference position which has undergone reaction for a predetermined period of time.

REFERENCES:
patent: 3540858 (1970-11-01), Rochte et al.
patent: 3586484 (1971-06-01), Anderson
patent: 3681029 (1972-08-01), Shapiro
patent: 3773423 (1973-11-01), Hach
patent: 3864089 (1975-02-01), Tiffany et al.
patent: 3873217 (1975-03-01), Anerson et al.

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